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Corpus Christi Watershed

Pope Saint Paul VI (3 April 1969): “Although the text of the Roman Gradual—at least that which concerns the singing—has not been changed, the Entrance antiphons and Communions antiphons have been revised for Masses without singing.”

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Views from the Choir Loft

Articles

Cynthia Ostrowski · September 20, 2023

What Robert Did to My Graphics

“Dear Cynthia: I landed on your website while searching for…”

Dr. Lucas Tappan · September 20, 2023

This Sunday! • Q&A “Developing a Youth Choir Program”

I will be privileged to field your questions alongside two well known and widely respected church musicians: Mary Ann Carr Wilson and Jennifer Donelson-Nowicka.

Jeff Ostrowski · September 20, 2023

PDF Download • “Glory To God” for Congregation & Choir (Mass of Saint Noël Chabanel)

My setting begins with the entire congregation singing—but the middle section is SATB polyphony.

Jeff Ostrowski · September 19, 2023

Gregorian Chant Introit • (Sung According to the Official Rhythm of the Catholic Church)

This coming Sunday is the 17th Sunday after Pentecost (EF).

Jeff Ostrowski · September 19, 2023

(Quiz) • “How Well Do You Know Your Hymns?”

Including a tip on preventing choirs from ‘sinking’ the pitch lower and lower.

William J. Fritz · September 17, 2023

Enter the Gregorian Rhythm Wars

My goal is to clarify and illumine what I believe exactly is at stake when we debate the rhythm in chant. I shall first attempt to summarize the core arguments that each of the main authors in this blog series use.

Patrick Williams · September 16, 2023

Gregorian Rhythm Wars • “Mocquereau on Trial” (16 Sep 2023)

“The burden of proof is on the one who persists in ignoring the evidence.” —Patrick Williams

Keven Smith · September 15, 2023

Implementing a Private Lesson Program for Your Choir

How to sell the idea to your singers, and what to teach them. (Part 2 of 2)

Follow the Discussion on Facebook

Jeff Ostrowski · September 14, 2023

Natália Explains: “Why You Should Care About Shared Melodies.”

Everything’s going great, until you start playing…

Jeff Ostrowski · September 14, 2023

Traditional Latin Mass with Vernacular (!) Ordinary at High Mass in the 1600s

I will let you in on a secret!

Dr. Charles Weaver · September 13, 2023

A Concert in Honor of William Byrd

The better the voice is, the meeter it is to honour and serve God therewith: and the voice of man is chiefly to be employed to that end.

Jeff Ostrowski · September 13, 2023

Eucharistic Hymn by the Archbishop of Canterbury

Using a favorite melody of Dr. Theodore Marier.

William J. Fritz · September 13, 2023

“Ever Ancient, Ever New” • Sacred Concert in North Florida

“It is even more encouraging when a concert with 𝑡𝑟𝑢𝑙𝑦 𝑎𝑢𝑡ℎ𝑒𝑛𝑡𝑖𝑐 Catholic music is done.” —Mæstro Fritz

Jeff Ostrowski · September 12, 2023

“Can No One Defend This?” • Why Everyone Should Sing From the Official Edition

I can never go back!

Jeff Ostrowski · September 11, 2023

Jeff Ostrowski’s Discovery • (Does Anyone Care?)

Feel free to examine every single page if you doubt what I’m saying!

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Corpus Christi Watershed

President’s Corner

    PDF Download • “Atténde Dómine”
    Although it isn’t nearly as ancient as other hymns in the plainsong repertoire, Atténde Dómine, et miserére, quía peccávimus tíbi (“Look down, O Lord, and have mercy, for we have sinned against Thee”) has become one of the most popular hymns for LENT—perhaps because it was included in the famous Liber Usualis of Solesmes. This musical score (PDF file) has an incredibly accurate version in English, as well as a nice version in Spanish, and also the original Latin. Although I don’t claim to have a great singing voice, this morning I recorded this rehearsal video.
    —Jeff Ostrowski
    Music List • (1st Sunday of Lent)
    Readers have expressed interest in seeing the ORDER OF MUSIC I’ve prepared for this coming Sunday—22 February 2026—the 1st Sunday of Lent (Year A). If such a thing interests you, feel free to download it as a PDF file. As always, the Responsorial Psalm, Gospel Acclamation, and Mass Propers for this Sunday are available at the outstanding feasts website alongside the official texts in Latin. I spent an enormous amount of time preparing this ORDER OF MUSIC—because the children’s choir will join us—and some of its components came out great. For example, the COMMUNION ANTIPHON with Fauxbourdon is utterly resplendent, yet still ‘Lenten’.
    —Jeff Ostrowski
    2-Voice Arrangement for Lent
    Those seeking a two-voice arrangement for LENT and PASSIONTIDE should click here and scroll down. It’s based on number 775 in the Brébeuf Hymnal, with an enchanting melody written by Kevin Allen (the legendary American composer of sacred music). That text—“Pendens In Crucis Cornibus”—is often used for the Feast of our Lady of Sorrows. That link is important because, in addition to the musical score, it provides free rehearsal videos for each individual voice: something volunteer choirs appreciate!
    —Jeff Ostrowski

Quick Thoughts

    “Reminder” — Month of Febr. (2026)
    On a daily basis, I speak to people who don’t realize we publish a free newsletter (although they’ve followed our blog for years). We have no endowment, no major donors, no savings, and refuse to run annoying ads. As a result, our mailing list is crucial to our survival. It couldn’t be easier to subscribe! Just scroll to the bottom of any blog article and enter your email address.
    —Jeff Ostrowski
    PDF Chart • “Plainsong Rhythm”
    I will go to my grave without understanding the lack of curiosity so many people have about the rhythmic modifications made by Dom André Mocquereau. For example, how can someone examine this single sheet comparison chart and at a minimum not be curious about the differences? Dom Mocquereau basically creates a LONG-SHORT LONG-SHORT rhythmic pattern—in spite of enormous and overwhelming manuscript evidence to the contrary. That’s why some scholars referred to his method as “Neo-Mensuralist” or “Neo-Mensuralism.”
    —Jeff Ostrowski
    PDF • “O Come All Ye Faithful” (Simplified)
    I admire the harmonization of “Adeste Fideles” by David Willcocks (d. 2015), who served as director of the Royal College of Music (London, England). In 2025, I was challenged to create a simplified arrangement for organists incapable of playing the authentic version at tempo. The result was this simplified keyboard arrangement (PDF download) based on the David Willcocks version of “O Come All Ye Faithful.” Feel free to play through it and let me know what you think.
    —Jeff Ostrowski

Random Quote

“Although some may not understand what is being sung, they understand why it is being sung, that is, for the praise of God, and this is enough, even if the faithful do not strictly speaking sing in order to rouse their devotion.”

— Saint Thomas Aquinas

Recent Posts

  • The Weekday Communions of Lent
  • PDF Download • “Atténde Dómine”
  • “Chant Is Not a Penitential Act” • Lenten Reflection by Daniel Marshall
  • (Ash Wednesday) • Medieval Illumination Depicting the Distribution of Ashes
  • Music List • (1st Sunday of Lent)

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